The fog was so heavy this morning that drivers could hardly ______ thethings just ten meters away from them.

People have planted a lot of trees and grass in order to ____ wind and sand in the desert.

The government has had to _______ with the opposition party on the new regulation, which will come to effect next month.

---I think he is taking an active part in social work.  ----I agree with you ________. 

--- How about eight o’clock outside the cinema?--- That _________ me fine.